RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
A tetrahydrobiopterin (BH4)-deficient hyperphenylalaninemia that is characterized by hyperphenylalaninemia, depletion of the neurotransmitters dopamine and serotonin, and progressive cognitive and motor deficits and that has_material_basis_in homozygous or compound heterozygous mutation in the QDPR gene, which encodes an enzyme involved in the salvage pathway for BH4, on chromosome 4p15. (DO)
Synonyms:
exact_synonym:
DHPR DEFICIENCY; DIHYDROPTERIDINE REDUCTASE DEFICIENCY; Dihydropteridine Reductase Deficiency Disease; HPABH4C; HYPERPHENYLALANINEMIA, TETRAHYDROBIOPTERIN-DEFICIENT, DUE TO DHPR DEFICIENCY; QDPR DEFICIENCY; QUINOID DIHYDROPTERIDINE REDUCTASE DEFICIENCY; tetrahydrobiopterin (BH4)-deficient hyperphenylalaninemia due to dihydropteridine reductase deficiency
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: Dihydropteridine reductase deficiency | ClinVar Annotator: match by term: Quinoid dihydropteridine reductase deficiency